MC9S12A128CPVE datasheet by Freescale Semiconductor

MC9S12A128CPVE Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MC9S12A128CPVE?
  The maximum clock frequency of the MC9S12A128CPVE is 25 MHz.
• How do I configure the internal clock oscillator?
  The internal clock oscillator can be configured using the CLKSEL register. The CLKSEL register allows you to select the clock source, clock frequency, and clock mode.
• What is the purpose of the COP (Computer Operating Properly) watchdog timer?
  The COP watchdog timer is used to monitor the operation of the microcontroller and reset it if it fails to respond within a specified time period.
• How do I use the SCI (Serial Communication Interface) module?
  The SCI module can be used for asynchronous serial communication. To use the SCI module, you need to configure the SCI control register, set the baud rate, and enable the transmitter and receiver.
• What is the purpose of the Flash protection feature?
  The Flash protection feature is used to protect the Flash memory from unauthorized access or modification. It allows you to set a protection level for the Flash memory, which can be used to prevent accidental or malicious changes to the program code.